Sampling tube and sampling device

Abstract

The utility model discloses a sampling tube and sampling device, including sample pipe body, third drive assembly and at least one piece of blocking piece, sample pipe body lumen sets up third drive assembly, and sample pipe body inner tube wall bottom end adapter blocking piece one side, and the other side of blocking piece is connected with third drive assembly output end, and third drive assembly is configured as drive blocking piece and produces the overturning action around adapter point, and blocks sample pipe body, the utility model has the advantages of: through setting up third drive assembly and at least one piece of blocking piece, make sample pipe body after sampling, and the sample pipe body is blocked, prevents soil sample to miss.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a sampling tube and sampling device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich mining areas. In order to understand the coal resource reserves, geological drilling and sampling tools are often used to explore the coal resource reserves. Coal mine hydrogeological exploration drilling refers to a geological work that uses certain drilling machinery and equipment and processes to obtain rock cores below the surface to make reliable evaluations of geological and mineral resource parameters. In the process of coal mine geological exploration drilling, special drilling and sampling equipment is required.

[0003] CN111929100A discloses a sampling device for hydrogeological exploration. This device facilitates the adjustment of the movable bottom rod and movable top rod to ensure that the sampling head is perpendicular to the ground and that the sampling is representative. A sampling shell is installed inside the top plate, and a first motor, a sliding rod, a sliding block, a gear, a second motor, and a rack are installed inside the sampling shell to facilitate geological sampling, save manpower, and improve sampling efficiency. A push plate, a clamping spring, and a push rod are installed on the top plate to facilitate the removal of geological samples from the sampling head.

[0004] In the above-mentioned sampling process, the motor rotates, causing the gear to rotate. The gear drives the meshing rack to move downward, which in turn drives the sampling head to insert into the ground for sampling. When the sampling head is lifted upward, the sample is prone to falling.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to solve the problem of samples easily falling off after sampling.

[0007] This utility model solves the above-mentioned technical problems through the following technical means:

[0008] This utility model claims to protect a sampling tube, including a sample tube body, a third driving component, and at least one sealing plate; the third driving component is provided inside the cavity of the sample tube body, and the bottom end of the inner tube wall of the sample tube body is connected to one side of the sealing plate, and the other side of the sealing plate is connected to the output end of the third driving component. The third driving component is configured to drive the sealing plate to generate a flipping action around the junction point to seal the sample tube body.

[0009] This invention, by setting a third driving component and at least one sealing piece, seals the sample tube body after sampling to prevent soil sample leakage.

[0010] Preferably, the third drive assembly includes a third power unit, a third reversing unit, and a traction unit. The third power unit is disposed at the top of the sample tube body cavity, and the third reversing unit is disposed on the inner wall of the sample tube body. The third reversing unit is located above the transition point. The output end of the third power unit is connected to one end of the traction unit, and the other end of the traction unit bypasses the third reversing unit and is connected to the sealing plate. The traction unit constitutes the output end of the third drive assembly.

[0011] The third drive component works together with the sealing plate to ensure that the soil sample entering the sample tube body no longer falls out.

[0012] Preferably, the third power unit includes a third motor, a lead screw, a sliding sleeve, and a slider. The third motor is installed at the top of the sample tube body cavity. The output shaft of the third motor is connected to the lead screw. The lead screw is arranged coaxially with the sample tube body. A sliding sleeve meshes with the lead screw. A slider is radially protruding from the outer wall of the sliding sleeve. The slider and the sealing plate are arranged in a one-to-one correspondence. The slider and the groove opened in the inner wall of the sample tube body form a slider guide fit. The length of the groove is parallel to the axis of the sample tube body. The bottom of the slider is connected to a traction unit. The slider constitutes the output end of the three power components.

[0013] The slide and the slider work together to guide the slide sleeve and prevent the slide sleeve from rotating with the lead screw.

[0014] Preferably, the third reversing unit includes a mounting bracket and a pulley. The mounting bracket is installed on the inner wall of the sample tube body. The mounting bracket has a U-shaped structure and the mounting bracket is connected to the pulley, which is located above the transition point.

[0015] The third reversing unit is used to reverse the direction of the traction unit, so that when the third power unit pulls the traction unit, the bottom of the traction unit can cause the sealing plate to flip.

[0016] Preferably, the third drive assembly also includes a partition plate, which is coaxially arranged inside the sample tube body cavity. The partition plate is located between the slider and the sealing plate. The partition plate has centrifugal through holes, and the through holes are arranged in a one-to-one correspondence with the traction units. The traction units pass through the corresponding through holes.

[0017] A partition is coaxially installed inside the sample tube body cavity below the slider. The partition has two main functions: first, it can separate the soil from the third power unit when the sample tube body is sampling soil; second, it limits the traction unit and facilitates the traction of the sealing plate by the traction unit. Specifically, there are four centrifugally penetrating holes on the partition, and the holes are arranged in a one-to-one correspondence with the traction units. The traction units extend downward through the corresponding holes.

[0018] Preferably, the bottom end of the inner wall of the sample tube is hinged to the sealing piece, and the hinge forms a transition point.

[0019] Preferably, the bottom of the sample tube body has a conical structure, and a retaining ring is protruding inside the opening of the conical hole.

[0020] To further prevent soil sample leakage, it is preferable that a retaining ring is protruding inside the conical hole at the bottom of the sampling tube.

[0021] This utility model claims protection for a sampling device, including a sampling tube, a support, a first driving mechanism, and a second driving mechanism. The support is provided with the first driving mechanism, and the second driving mechanism is provided at the bottom of the first driving mechanism. The first driving mechanism is configured to drive the second driving mechanism to move in a vertical direction. The sampling tube is provided at the bottom of the second driving mechanism, and the second driving mechanism is configured to drive the sampling tube to rotate.

[0022] In fact, the first drive mechanism and the second drive mechanism together constitute the drilling and sampling component. The second drive mechanism drives the sampling tube to rotate, and the first drive mechanism drives the sampling tube to move, so that the sampling tube can generate a downward and rotating motion. At this time, the threaded cutting edge on the outer wall of the sampling tube drills into the soil, and the soil enters the sampling tube for sampling.

[0023] Preferably, the first drive mechanism includes a first power component, a guide shaft, a guide block, and a sleeve; the first power component is disposed on the top of the bracket, the output end of the first power component is connected to the top of the sleeve, the sleeve is located inside the bracket and the top of the sleeve is sealed, the outer wall of the sleeve is radially protruding with a guide block, the guide block passes through a guide hole, the axis of the guide hole is vertical, and the guide hole and the guide shaft disposed inside the bracket form an insertion fit.

[0024] The guide block and guide hole work together to guide the movement of the sleeve and prevent it from deflecting during movement.

[0025] Preferably, a second motor is provided at the top of the sleeve cavity, and the output shaft of the second motor is coaxially connected to the top of the sampling tube, and the top of the sampling tube is sealed; the sampling tube passes through the lower opening of the sleeve, and the sampling tube and the lower opening are coaxially transition-fitted, wherein the second motor is a second drive mechanism. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the sampling device according to Embodiment 1 of this utility model;

[0027] Figure 2 This is a longitudinal cross-sectional view of the sampling device according to Embodiment 1 of this utility model;

[0028] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0029] 1. Sampling tube; 10. Sample tube body; 101. Slide groove; 102. Retaining ring;

[0030] 110. Third power unit; 1101. Third motor; 1102. Lead screw; 1103. Sliding sleeve; 1104. Slider;

[0031] 1110. Mounting bracket; 1111. Pulley; 112. Traction unit; 113. Partition plate;

[0032] 12. Sealing plate;

[0033] 2. Bracket;

[0034] 30. First power assembly; 31. Guide shaft; 32. Guide block; 34. Sleeve;

[0035] 4. Second drive mechanism. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Example 1

[0038] See Figure 1 This embodiment requires protection of a sampling device used for geological drilling sampling for coal mine resource reserve exploration. The sampling device includes a support 2, a first drive mechanism, a second drive mechanism 4, and a sampling tube 1.

[0039] The bracket 2 is used to form the sampling device into a whole. When in use, it can be carried directly and placed at the sampling position. The bracket 2 can be set as an inverted U-shaped bracket or a square bracket 2. It should be noted that if it is a square bracket 2, then the bottom plate of the bracket 2 directly below the sampling tube 1 needs to have a hole through which the sampling tube 1 can pass.

[0040] See Figure 2Taking the U-shaped bracket 2 as an example, the bracket 2 is equipped with a first driving mechanism. Specifically, the first driving mechanism includes a first power component 30, a guide shaft 31, a guide block 32, and a sleeve 34; the sleeve 34 is provided inside the bracket 2, and is positioned between the sleeve 34 and the bracket 2 to guide the movement of the bracket 2. It includes the guide shaft 31 and the guide block 32. The guide shaft 31 is provided inside the bracket 2, and the axis of the guide shaft 31 is vertical. The guide block 32 is radially protruding from the outer wall of the sleeve 34, and the guide block 32 has a guide hole that is inserted and engaged with the guide shaft 31.

[0041] Preferably, there are two guide shafts 31, and the number and position of the guide shafts 31 correspond one-to-one with those of the guide blocks 32. The guide blocks 32 are preferably arranged symmetrically along the axis of the sleeve 34 to ensure that they are evenly stressed during guidance. Of course, the number of guide shafts 31 is not limited to two. Depending on the actual situation, the number of guide shafts 31 can be greater than two, such as four. When there are four guide shafts 31, they are preferably arranged in a ring array along the axis of the sleeve 34.

[0042] It is worth mentioning that when the bracket 2 is an inverted U-shaped bracket, the guide shaft 31 can be set at the crossbeam of the inverted U-shaped bracket.

[0043] The top of the sleeve 34 is sealed, and the top of the sleeve is connected to the output end of the first power component 30 located on the top of the bracket 2. The first power component 30 is preferably a hydraulic cylinder, and the hydraulic rod of the hydraulic cylinder is the output end of the first power component 30. The first power component 30 drives the sleeve 34 to move relative to the bracket 2 in the guide direction.

[0044] A second drive mechanism 4 is installed at the bottom of the first drive mechanism, and a sampling tube 1 is installed at the bottom of the second drive mechanism 4. The second drive mechanism 4 is used to drive the sampling tube 1 to rotate. The outer wall of the sampling tube 1 is provided with threaded cutting edges, and the bottom of the sampling tube 1 has a conical structure. Specifically, the second drive mechanism 4 is preferably a second motor. The second motor is installed at the top of the sleeve 34 cavity. The output shaft of the second motor is coaxially connected to the top of the sampling tube 1, and the top of the sampling tube 1 is sealed. The sampling tube 1 passes through the lower opening of the sleeve 34, and the sampling tube 1 and the lower opening are coaxially transition-fitted.

[0045] The top sealing of sampling tube 1 refers to sealing the top of sampling tube 1. The lower cylinder opening of sleeve 34 refers to the opening formed by the coaxial through round hole at the bottom of sleeve 34. The coaxial transition fit between sampling tube 1 and lower cylinder opening refers to the coaxial insertion of sampling tube 1 into the round hole, with a transition fit between them. In this way, when the second motor drives sampling tube 1 to rotate, it is restricted by the lower cylinder opening to avoid the problem of axial movement.

[0046] In fact, the first drive mechanism and the second drive mechanism 4 together constitute the drilling and sampling component. The second drive mechanism 4 drives the sampling tube 1 to rotate, and the first drive mechanism drives the sampling tube 1 to move, so that the sampling tube 1 can generate a downward and rotating motion. At this time, the threaded cutting edge of the outer wall of the sampling tube 1 drills into the soil, and the soil enters the sampling tube 1 for sampling.

[0047] See Figure 2 and Figure 3 The sampling tube 1 includes a sample tube body 10, a third drive assembly, and four sealing plates 12. The third drive assembly and the sealing plates 12 work together to ensure that the soil sample entering the sample tube body 10 does not fall out. Specifically, the third drive assembly is installed inside the cavity of the sample tube body 10. The third drive assembly is used to pull the sealing plates 12 to rotate. Specifically, the third drive assembly includes a third power unit 110, a third reversing unit, a partition 113, and a traction unit 112. The traction unit 112 is preferably a traction rope. The third power unit 110 is installed at the top of the cavity of the sample tube body 10. The third power unit 110 includes a third motor 1101, a lead screw 1102, a sliding sleeve 1103, and a slider 1104. The output shaft of the third motor 1101 is connected to the lead screw 1102. The screw 1102 is coaxially arranged with the sample tube body 10. A sliding sleeve 1103 is engaged on the screw 1102. Four sliders 1104 are radially protruding from the outer wall of the sliding sleeve 1103 to form a cross structure. The sliders 1104 are arranged in a one-to-one correspondence with the sealing plate 12. The sliders 1104 are respectively guided by the grooves 101 opened in the inner wall of the sample tube body 10. The length of the grooves 101 is parallel to the axis of the sample tube body 10. The bottom of each slider 1104 is connected to the top of the traction unit 112.

[0048] A partition 113 is coaxially arranged inside the sample tube body 10 below the slider 1104. The partition 113 has two main functions. The first function is to separate the soil from the third power unit 110 when the sample tube body 10 is sampling soil. The second function is to limit the traction unit 112 and facilitate the traction of the traction unit 112 on the sealing plate 12. Specifically, there are four centrifugal through holes on the partition 113. The through holes are arranged in a one-to-one correspondence with the traction unit 112. The traction unit 112 extends downward through the corresponding through holes.

[0049] Since the partition 113 is located below the lead screw 1102, it is necessary to ensure that the partition 113 does not interfere with the rotation of the lead screw 1102. This can be achieved by passing a hole through the middle of the partition 113 through which the lead screw 1102 can pass, or by setting the partition 113 so that it does not touch with each other. In this case, it is necessary to install an anti-detachment block at the bottom of the lead screw 1102.

[0050] Four third reversing units are provided on the inner wall of the sample tube body 10 at the bottom of the partition 113. The third reversing units are arranged in a one-to-one correspondence with the through holes. The third reversing units are used to reverse the traction unit 112, so that when the third power unit 110 pulls the traction unit 112, the bottom of the traction unit 112 can drive the sealing plate 12 to flip. Therefore, the third reversing unit is located above the sealing plate 12. Specifically, the third reversing unit includes a mounting frame 1110 and a pulley 1111. The mounting frame 1110 is provided on the inner wall of the sample tube body 10. The mounting frame 1110 has a U-shaped structure. The mounting frame 1110 is connected to the pulley 1111. The traction unit 112 extends downward through the pulley 1111.

[0051] The sealing plate 12 has a quarter-fan-shaped structure, which is assembled to form a circular plate that fits against the inner wall of the sample tube body 10. The bottom end of the inner wall of the sample tube body 10 is hinged to one side of the sealing plate 12, and the other side of the sealing plate 12 is connected to the traction unit 112. The third drive component drives the slider 1104 to move up and down, so that the traction unit 112 pulls the sealing plate 12 to rotate around the hinge. After rotation, there are generally two states. State one is that the sealing plate 12 fits against the inner wall of the sample tube body 10. At this time, the sample tube body 10 is in an unsealed state and normal sampling can be carried out. State two is that the sealing plate 12 seals the inner wall of the sample tube body 10. At this time, the soil is located inside the sample tube body 10 and will not fall out.

[0052] To further prevent soil sample leakage, preferably, a retaining ring 102 is provided inside the opening of the conical hole at the bottom of the sampling tube 1.

[0053] It is worth mentioning that the shape and style of the sealing plate 12 are not limited to a fan-shaped structure. Due to the different shapes and styles, and because the sealing plate 12 corresponds one-to-one with the third reversing unit, the traction unit 112, the slider 1104, the slide groove 101 and the through hole, the above components will also undergo corresponding changes.

[0054] Example 2

[0055] The difference between this embodiment and Embodiment 1 is that the sealing plate 12 consists of two semi-circular pieces that are joined together to form a circular piece that fits against the inner wall of the sample tube body 10. Therefore, there are only two of each: the third reversing unit, the traction unit 112, the slider 1104, and the through hole, positioned at their respective locations.

[0056] Example 3

[0057] The difference between this embodiment and Embodiment 1 is that the sealing plate 12 is a single circular piece. Therefore, the third reversing unit, traction unit 112, slider 1104, and through hole are also only one, located at their respective positions.

[0058] Therefore, the number, shape, and style of the sealing pieces 12 are not limited, aiming to ensure that after assembly, they form a circular piece that can seal the sample tube body 10. However, it is necessary to ensure that if the sealing pieces 12 change, the third reversing unit, traction unit 112, slider 1104, and through hole also make adaptive changes to ensure the operation of the entire sampling device. In addition, it is worth noting that when there are more sealing pieces 12, they will fit better when naturally hanging down on the inner wall of the sample tube body 10 without external force, which will facilitate sampling; however, when there are more pieces, the sealing pieces 12 become more fragmented, which will greatly affect the strength and sealing performance during operation. Therefore, the design can be based on actual needs.

[0059] The sampling device is used for geological drilling sampling in coal mine resource reserve exploration. The process is as follows:

[0060] S1. Place the support 2 at the sampling position and align the sampling tube 1 with the soil to be sampled.

[0061] S2. Start the first drive mechanism and the second drive mechanism 4. Specifically, the second drive mechanism 4 drives the sampling tube 1 to rotate, and then the first drive mechanism drives the sampling tube 1 to move, so that the sampling tube 1 can generate a downward rotating motion. At this time, the threaded blade on the outer wall of the sampling tube 1 drills into the soil, and the soil enters the sampling tube 1 for sampling.

[0062] S3. Start the third drive component. Specifically, after the soil enters the sampling tube 1, start the third motor 1101. The lead screw 1102 rotates and drives the sliding sleeve 1103 to move upward, so that the slider 1104 moves in the sliding groove 101. Finally, the traction component pulls the sealing plate 12 to rotate around the hinge and turn to the sealing plate 12 to seal the sampling tube 1.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sampling tube (1), characterized in that, It includes a sample tube body (10), a third driving component and at least one sealing plate (12); the third driving component is provided inside the lumen of the sample tube body (10), and the bottom end of the inner wall of the sample tube body (10) is connected to one side of the sealing plate (12), and the other side of the sealing plate (12) is connected to the output end of the third driving component. The third driving component is configured to drive the sealing plate (12) to generate a flipping action around the switching point to seal the sample tube body (10).

2. The sampling tube (1) according to claim 1, characterized in that, The third drive assembly includes a third power unit (110), a third reversing unit, and a traction unit (112). The third power unit (110) is installed at the top of the sample tube body (10) and the third reversing unit is installed on the inner wall of the sample tube body (10). The third reversing unit is located above the transition point. The output end of the third power unit (110) is connected to one end of the traction unit (112), and the other end of the traction unit (112) bypasses the third reversing unit and is connected to the sealing plate (12). The traction unit (112) constitutes the output end of the third drive assembly.

3. The sampling tube (1) according to claim 2, characterized in that, The third power unit (110) includes a third motor (1101), a lead screw (1102), a sliding sleeve (1103), and a slider (1104). The third motor (1101) is installed at the top of the sample tube body (10). The output shaft of the third motor (1101) is connected to the lead screw (1102). The lead screw (1102) is coaxially arranged with the sample tube body (10). The sliding sleeve (1103) is engaged on the lead screw (1102). A slider (1104) is radially protruding from the wall. The slider (1104) and the sealing plate (12) are arranged in a one-to-one correspondence. The slider (1104) and the groove (101) opened in the inner wall of the sample tube body (10) form a guide fit for the slider (1104). The groove length of the groove (101) is parallel to the axis of the sample tube body (10). The bottom of the slider (1104) is connected to the traction unit (112). The slider (1104) constitutes the output end of the three power components.

4. The sampling tube (1) according to claim 2, characterized in that, The third reversing unit includes a mounting bracket (1110) and a pulley (1111). The mounting bracket (1110) is installed on the inner wall of the sample tube body (10). The mounting bracket (1110) has a U-shaped structure. The mounting bracket (1110) is connected to the pulley (1111), which is located above the connection point.

5. The sampling tube (1) according to claim 2, characterized in that, The third drive assembly also includes a partition (113). The partition (113) is coaxially arranged inside the tube body (10). The partition (113) is located between the slider (1104) and the sealing piece (12). The partition (113) has centrifugal through holes. The through holes are arranged in a one-to-one correspondence with the traction unit (112). The traction unit (112) passes through the corresponding through holes.

6. The sampling tube (1) according to claim 1, characterized in that, The bottom of the inner wall of the sample tube body (10) is hinged to one side of the sealing piece (12) via a hinge, and the hinge forms a transition point.

7. The sampling tube (1) according to claim 1, characterized in that, The bottom of the sample tube body (10) is conical, and a retaining ring (102) is protruding inside the upper opening of the conical hole.

8. A sampling device, characterized in that, It includes a sampling tube (1), a support (2), a first driving mechanism and a second driving mechanism (4). The support (2) is equipped with the first driving mechanism, and the second driving mechanism (4) is installed at the bottom of the first driving mechanism. The first driving mechanism is configured to drive the second driving mechanism (4) to move in the vertical direction. The sampling tube (1) is installed at the bottom of the second driving mechanism (4), and the second driving mechanism (4) is configured to drive the sampling tube (1) to rotate.

9. The sampling device according to claim 8, characterized in that, The first drive mechanism includes a first power assembly (30), a guide shaft (31), a guide block (32), and a sleeve (34). The first power assembly (30) is installed on the top of the bracket (2). The output end of the first power assembly (30) is connected to the top of the sleeve (34). The sleeve (34) is located inside the bracket (2) and the top of the sleeve (34) is sealed. The outer wall of the sleeve (34) is radially protruding with a guide block (32). The guide block (32) passes through a guide hole. The axis of the guide hole is vertical. The guide hole and the guide shaft (31) installed inside the bracket (2) form an insertion fit.

10. The sampling device according to claim 8, characterized in that, A second motor is installed at the top of the sleeve (34) cavity. The output shaft of the second motor is coaxially connected to the top of the sampling tube (1). The top of the sampling tube (1) is sealed. The sampling tube (1) passes through the lower opening of the sleeve (34). The sampling tube (1) and the lower opening are coaxially transitionally fitted. The second motor is the second drive mechanism (4).

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